Honda FF 300 Owner's Manual page 15

6. Air cleaner
Never run the engine without the air cleaner. Rapid engine wear will
result.
1. Push the latch tabs and pull the air cleaner cover out of the air
cleaner case, then disengage the lower locking tabs from the air
cleaner case and remove the air cleaner cover.
2. Check the air cleaner for dirt or obstruction of the element, clean the
element if necessary (page
AIR CLEANER CASE
AIR CLEANER ELEMENT
14
37 ).
LOWER LOCKING TAB
LATCH TAB
AIR CLEANER COVER